:root {
  color-scheme: light;
  --ink: #10131a;
  --muted: #657188;
  --line: #d9e0e9;
  --soft: #f4f6f8;
  --black: #090c11;
  --black-2: #11151d;
  --purple: #6247e8;
  --purple-2: #ebe7ff;
  --lime: #b8ff2c;
  --lime-soft: #f2ffd8;
  --green: #177a4c;
  --coral: #ff655d;
  --shadow: 0 22px 60px rgba(13, 18, 28, .13);
  --topbar: 70px;
  --sidebar: 290px;
  --rail: 220px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-width: 320px;
  background: #fff;
  color: var(--ink);
  font: 15px/1.6 Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  text-rendering: optimizeLegibility;
}
body.nav-open, body.dialog-open { overflow: hidden; }
button, input, select, textarea { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
a { color: var(--purple); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
img { display: block; max-width: 100%; }
code, pre, kbd { font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace; }
:focus-visible { outline: 3px solid rgba(98, 71, 232, .32); outline-offset: 3px; }

.skip-link {
  position: fixed; left: 16px; top: -80px; z-index: 100;
  padding: 10px 14px; border-radius: 8px; background: var(--lime); color: var(--ink); font-weight: 800;
}
.skip-link:focus { top: 12px; }

.manual-sidebar {
  position: fixed; inset: 0 auto 0 0; z-index: 40; width: var(--sidebar);
  display: flex; flex-direction: column; overflow: hidden;
  background: radial-gradient(circle at 12% 2%, rgba(98,71,232,.18), transparent 25%), var(--black);
  color: #fff; border-right: 1px solid #232936;
}
.manual-brand {
  min-height: var(--topbar); display: flex; align-items: center; gap: 12px;
  padding: 14px 20px; color: #fff; text-decoration: none; border-bottom: 1px solid #252a34;
}
.manual-brand img { width: 40px; height: 40px; object-fit: contain; }
.manual-brand strong { display: block; font-size: 17px; line-height: 1.1; }
.manual-brand small { display: block; margin-top: 3px; color: #a8b0bd; font-size: 12px; }
.sidebar-close { display: none; }
.toc-wrap { flex: 1; overflow: auto; padding: 18px 12px 32px; scrollbar-width: thin; scrollbar-color: #3b4250 transparent; }
.toc-group { margin: 0 0 22px; }
.toc-group-title { margin: 0 10px 8px; color: #8f99a8; font-size: 11px; font-weight: 800; letter-spacing: .11em; text-transform: uppercase; }
.toc-link {
  position: relative; display: flex; align-items: center; gap: 10px; width: 100%;
  margin: 2px 0; padding: 9px 11px; border: 0; border-radius: 8px; background: transparent;
  color: #dce1e9; cursor: pointer; text-align: left; font-size: 13px; line-height: 1.3;
}
.toc-link::before { content: ""; width: 5px; height: 5px; flex: 0 0 auto; border: 1px solid #727c8c; transform: rotate(45deg); }
.toc-link:hover { background: #171c25; color: #fff; }
.toc-link.active { background: #2b2558; color: #fff; font-weight: 750; }
.toc-link.active::after { content: ""; position: absolute; inset: 8px auto 8px 0; width: 3px; background: var(--lime); border-radius: 0 3px 3px 0; }
.toc-link.active::before { border-color: var(--lime); background: var(--lime); }
.sidebar-foot { padding: 16px 18px 20px; border-top: 1px solid #252a34; color: #9fa8b6; font-size: 12px; }
.sidebar-foot b { color: #fff; }

.manual-topbar {
  position: fixed; inset: 0 0 auto var(--sidebar); z-index: 35; height: var(--topbar);
  display: grid; grid-template-columns: minmax(260px, 640px) auto; align-items: center; gap: 24px;
  padding: 11px 26px; background: rgba(9,12,17,.97); border-bottom: 1px solid #252a34; color: #fff;
}
.mobile-brand, .mobile-menu { display: none; }
.search-trigger {
  display: flex; align-items: center; gap: 10px; min-height: 46px; width: 100%;
  padding: 0 14px; border: 1px solid #3a414d; border-radius: 9px; background: #11151b; color: #bcc4d0;
  cursor: pointer; text-align: left;
}
.search-trigger svg { width: 18px; height: 18px; }
.search-trigger span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.search-trigger kbd { margin-left: auto; padding: 2px 7px; border: 1px solid #454d5a; border-radius: 5px; color: #e9edf4; font-size: 11px; }
.manual-switch { display: flex; justify-self: end; padding: 3px; border: 1px solid #3a414d; border-radius: 8px; background: #11151b; }
.manual-switch a { min-width: 104px; padding: 8px 12px; border-radius: 5px; color: #cdd4df; text-decoration: none; text-align: center; font-size: 13px; font-weight: 700; }
.manual-switch a.active { background: var(--purple); color: #fff; }

.manual-shell { margin-left: var(--sidebar); padding-top: var(--topbar); min-height: 100vh; }
.manual-content { display: grid; grid-template-columns: minmax(0, 1fr) var(--rail); max-width: 1230px; margin: 0 auto; }
.reading-column { min-width: 0; padding: 48px clamp(32px, 5vw, 76px) 90px; border-right: 1px solid var(--line); }
.page-rail { position: relative; padding: 44px 20px; }
.page-rail-inner { position: sticky; top: calc(var(--topbar) + 28px); }
.page-rail h2 { margin: 0 0 12px; font-size: 12px; text-transform: uppercase; letter-spacing: .08em; }
.page-links { display: grid; gap: 2px; border-left: 1px solid var(--line); }
.page-links a { padding: 6px 0 6px 14px; color: #697488; text-decoration: none; font-size: 12px; line-height: 1.35; }
.page-links a:hover, .page-links a.active { margin-left: -1px; border-left: 2px solid var(--purple); color: var(--purple); }
.reading-meter { margin-top: 28px; padding-top: 20px; border-top: 1px solid var(--line); }
.reading-meter div { display: flex; justify-content: space-between; color: var(--muted); font-size: 11px; }
.reading-meter progress { width: 100%; height: 4px; margin-top: 9px; border: 0; border-radius: 4px; background: #e7ebef; }
.reading-meter progress::-webkit-progress-bar { background: #e7ebef; border-radius: 4px; }
.reading-meter progress::-webkit-progress-value { background: var(--purple); border-radius: 4px; }
.reading-meter progress::-moz-progress-bar { background: var(--purple); border-radius: 4px; }

.guide-chapter[hidden] { display: none; }
.chapter-kicker { display: flex; align-items: center; gap: 10px; margin: 0 0 14px; color: var(--purple); font-size: 12px; font-weight: 850; letter-spacing: .08em; text-transform: uppercase; }
.chapter-kicker::before { content: ""; width: 18px; height: 1px; background: var(--purple); }
.chapter-head h1 { max-width: 780px; margin: 0; font-size: clamp(36px, 4.5vw, 58px); line-height: 1.02; letter-spacing: -.045em; }
.chapter-dek { max-width: 760px; margin: 18px 0 0; color: #536078; font-size: 18px; line-height: 1.55; }
.chapter-meta { display: flex; flex-wrap: wrap; gap: 8px; margin: 22px 0 0; }
.chapter-meta span { padding: 5px 9px; border: 1px solid var(--line); border-radius: 6px; background: #fff; color: #536078; font-size: 11px; font-weight: 750; }
.chapter-body { margin-top: 42px; }
.chapter-body > section { scroll-margin-top: calc(var(--topbar) + 22px); padding-top: 2px; margin-top: 46px; }
.chapter-body > section:first-child { margin-top: 0; }
.chapter-body h2 { margin: 0 0 14px; font-size: 28px; line-height: 1.18; letter-spacing: -.025em; }
.chapter-body h3 { margin: 30px 0 10px; font-size: 18px; line-height: 1.3; }
.chapter-body p, .chapter-body li { max-width: 780px; }
.chapter-body p { margin: 10px 0 16px; color: #354055; }
.chapter-body ul, .chapter-body ol { margin: 14px 0 20px; padding-left: 24px; color: #354055; }
.chapter-body li + li { margin-top: 8px; }
.chapter-body strong { color: var(--ink); }
.lead-steps { list-style: none; padding: 0 !important; counter-reset: steps; }
.lead-steps > li { position: relative; min-height: 42px; padding: 0 0 22px 52px; counter-increment: steps; }
.lead-steps > li::before {
  content: counter(steps); position: absolute; left: 0; top: -2px; width: 32px; height: 32px;
  display: grid; place-items: center; border-radius: 8px; background: var(--purple); color: #fff; font-weight: 850;
}
.lead-steps > li::after { content: ""; position: absolute; left: 15px; top: 36px; bottom: 1px; width: 1px; background: var(--line); }
.lead-steps > li:last-child::after { display: none; }
.lead-steps p { margin: 4px 0 0; }
.procedure { list-style: none; padding: 0 !important; counter-reset: procedure; }
.procedure > li { position: relative; padding: 18px 18px 18px 60px; margin: 0; border-top: 1px solid var(--line); counter-increment: procedure; }
.procedure > li:last-child { border-bottom: 1px solid var(--line); }
.procedure > li::before { content: counter(procedure); position: absolute; left: 14px; top: 17px; display: grid; place-items: center; width: 29px; height: 29px; border-radius: 50%; background: var(--purple-2); color: var(--purple); font-weight: 850; }
.procedure > li > p { margin: 4px 0 0; }

.callout { display: grid; grid-template-columns: 34px 1fr; gap: 12px; margin: 24px 0; padding: 17px 18px; border: 1px solid #d6cffa; border-radius: 10px; background: #f5f2ff; }
.callout::before { content: "i"; display: grid; place-items: center; width: 28px; height: 28px; border-radius: 50%; background: var(--purple); color: #fff; font: 800 15px/1 Georgia, serif; }
.callout.success { border-color: #bfdf75; background: var(--lime-soft); }
.callout.success::before { content: "✓"; background: #69a800; font-family: inherit; }
.callout.warning { border-color: #ffb4af; background: #fff1f0; }
.callout.warning::before { content: "!"; background: var(--coral); font-family: inherit; }
.callout strong { display: block; margin-bottom: 2px; }
.callout p { margin: 0; font-size: 13px; }

.media-figure { margin: 28px 0; border: 1px solid #cfd7e2; border-radius: 12px; overflow: hidden; background: var(--black-2); box-shadow: 0 12px 30px rgba(20,25,35,.08); }
.media-figure button { display: block; width: 100%; padding: 0; border: 0; background: transparent; cursor: zoom-in; }
.media-figure img { width: 100%; height: auto; }
.media-figure figcaption { padding: 11px 14px; border-top: 1px solid #d6dde7; background: #fff; color: var(--muted); font-size: 12px; }
.gif-figure { position: relative; }
.gif-figure .replay-gif { position: absolute; top: 12px; right: 12px; z-index: 1; padding: 7px 10px; border: 1px solid #fff; border-radius: 7px; background: rgba(9,12,17,.82); color: #fff; cursor: pointer; font-size: 11px; font-weight: 750; }
.two-up { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; margin: 20px 0; }
.feature-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 24px; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.feature-list li { position: relative; padding: 13px 0 13px 24px; margin: 0; border-bottom: 1px solid var(--line); }
.feature-list li::before { content: "✓"; position: absolute; left: 0; color: var(--green); font-weight: 850; }
.role-table, .reference-table { width: 100%; margin: 18px 0 26px; border-collapse: collapse; font-size: 13px; }
.role-table th, .role-table td, .reference-table th, .reference-table td { padding: 11px 12px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.role-table th, .reference-table th { background: var(--soft); color: #455168; font-size: 11px; letter-spacing: .04em; text-transform: uppercase; }
.role-table tr:hover td, .reference-table tr:hover td { background: #fafbfc; }
.status-yes { color: var(--green); font-weight: 800; }
.status-no { color: #8a95a6; }
details.guide-details { margin: 14px 0; border: 1px solid var(--line); border-radius: 9px; background: #fff; }
details.guide-details summary { padding: 13px 16px; cursor: pointer; font-weight: 750; }
details.guide-details > div { padding: 0 16px 14px; border-top: 1px solid var(--line); }

.code-block { position: relative; margin: 18px 0; border-radius: 10px; overflow: hidden; background: #0e1219; color: #e8edf5; }
.code-block pre { margin: 0; padding: 20px 80px 20px 20px; overflow: auto; font-size: 12px; line-height: 1.7; }
.copy-button { position: absolute; top: 10px; right: 10px; padding: 7px 9px; border: 1px solid #3d4654; border-radius: 6px; background: #1b222d; color: #fff; cursor: pointer; font-size: 11px; }
.task-list { list-style: none; padding: 0 !important; border-top: 1px solid var(--line); }
.task-list li { margin: 0; border-bottom: 1px solid var(--line); }
.task-list label { display: flex; gap: 12px; padding: 13px 4px; cursor: pointer; }
.task-list input { width: 18px; height: 18px; margin-top: 2px; accent-color: var(--purple); }
.task-progress { display: flex; align-items: center; gap: 12px; margin: 15px 0; color: var(--muted); font-size: 12px; }
.task-progress progress { flex: 1; height: 7px; accent-color: var(--purple); }

.chapter-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 66px; padding-top: 24px; border-top: 1px solid var(--line); }
.chapter-nav button { min-height: 74px; padding: 12px 16px; border: 1px solid var(--line); border-radius: 9px; background: #fff; color: var(--ink); cursor: pointer; text-align: left; }
.chapter-nav button:last-child { text-align: right; }
.chapter-nav button:hover { border-color: var(--purple); background: #faf9ff; }
.chapter-nav small { display: block; color: var(--muted); }
.chapter-nav strong { color: var(--purple); }

.search-dialog { width: min(760px, calc(100vw - 32px)); max-height: min(720px, calc(100vh - 40px)); padding: 0; border: 1px solid #333a47; border-radius: 13px; background: #fff; box-shadow: var(--shadow); }
.search-dialog::backdrop, .media-dialog::backdrop { background: rgba(7,10,15,.72); backdrop-filter: blur(5px); }
.search-box { position: sticky; top: 0; z-index: 1; display: flex; gap: 10px; padding: 16px; border-bottom: 1px solid var(--line); background: #fff; }
.search-box input { flex: 1; min-width: 0; padding: 12px 14px; border: 1px solid #bcc6d3; border-radius: 8px; font-size: 16px; }
.dialog-close { width: 44px; border: 1px solid var(--line); border-radius: 8px; background: #fff; cursor: pointer; font-size: 22px; }
.search-help { margin: 0; padding: 10px 16px; color: var(--muted); font-size: 11px; }
.search-results { padding: 0 10px 14px; }
.search-result { display: block; width: 100%; padding: 13px 12px; border: 0; border-radius: 8px; background: #fff; cursor: pointer; text-align: left; }
.search-result:hover, .search-result:focus { background: var(--purple-2); }
.search-result strong { display: block; }
.search-result span { display: block; color: var(--muted); font-size: 12px; }
.search-empty { padding: 38px 20px; color: var(--muted); text-align: center; }
.media-dialog { width: min(1320px, calc(100vw - 30px)); max-height: calc(100vh - 30px); padding: 44px 12px 12px; border: 0; border-radius: 12px; background: var(--black); }
.media-dialog .dialog-close { position: absolute; top: 8px; right: 8px; border-color: #444c58; background: #171c24; color: #fff; }
.media-dialog img { max-height: calc(100vh - 86px); margin: auto; object-fit: contain; }
.nav-backdrop { display: none; }
.mobile-page-links { display: none; }

@media (max-width: 1120px) {
  :root { --rail: 190px; --sidebar: 265px; }
  .reading-column { padding-inline: 36px; }
}

@media (max-width: 900px) {
  :root { --topbar: 64px; }
  .manual-sidebar { width: min(310px, 86vw); transform: translateX(-105%); transition: transform .24s ease; box-shadow: var(--shadow); }
  body.nav-open .manual-sidebar { transform: translateX(0); }
  .sidebar-close { position: absolute; top: 14px; right: 12px; z-index: 2; display: grid; place-items: center; width: 38px; height: 38px; border: 1px solid #3a414d; border-radius: 8px; background: #11151b; color: #fff; cursor: pointer; font-size: 23px; }
  .manual-sidebar .manual-brand { padding-right: 58px; }
  .manual-topbar { left: 0; grid-template-columns: auto minmax(0,1fr) auto; gap: 10px; padding: 9px 14px; }
  .mobile-brand { display: flex; align-items: center; gap: 8px; color: #fff; text-decoration: none; font-weight: 800; }
  .mobile-brand img { width: 33px; height: 33px; }
  .mobile-menu { display: grid; place-items: center; width: 42px; height: 42px; border: 1px solid #3a414d; border-radius: 8px; background: #11151b; color: #fff; cursor: pointer; }
  .search-trigger { justify-content: center; min-height: 42px; padding: 0 11px; }
  .search-trigger span, .search-trigger kbd { display: none; }
  .manual-switch { position: fixed; top: var(--topbar); left: 0; right: 0; z-index: 34; justify-content: stretch; padding: 8px 14px; border: 0; border-radius: 0; background: #fff; border-bottom: 1px solid var(--line); }
  .manual-switch a { flex: 1; border: 1px solid var(--line); color: #354055; }
  .manual-switch a + a { margin-left: -1px; }
  .manual-switch a.active { border-color: var(--purple); color: #fff; }
  .manual-shell { margin-left: 0; padding-top: calc(var(--topbar) + 58px); }
  .manual-content { display: block; }
  .reading-column { padding: 38px clamp(20px, 6vw, 54px) 80px; border-right: 0; }
  .page-rail { display: none; }
  .mobile-page-links { display: block; margin: 26px 0 0; border: 1px solid var(--line); border-radius: 9px; }
  .mobile-page-links summary { padding: 12px 14px; cursor: pointer; font-weight: 800; }
  .mobile-page-links div { display: grid; padding: 0 14px 12px; }
  .mobile-page-links a { padding: 6px 0; text-decoration: none; }
  .nav-backdrop { position: fixed; inset: 0; z-index: 39; background: rgba(4,6,10,.6); }
  body.nav-open .nav-backdrop { display: block; }
}

@media (max-width: 620px) {
  .chapter-head h1 { font-size: 39px; }
  .chapter-dek { font-size: 16px; }
  .chapter-body { margin-top: 34px; }
  .chapter-body h2 { font-size: 24px; }
  .two-up, .feature-list { grid-template-columns: 1fr; }
  .role-table, .reference-table { display: block; overflow-x: auto; white-space: nowrap; }
  .chapter-nav { grid-template-columns: 1fr; }
  .chapter-nav button:last-child { text-align: left; }
  .lead-steps > li { padding-left: 46px; }
  .media-figure { margin-inline: -8px; border-radius: 9px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}

@media print {
  .manual-sidebar, .manual-topbar, .page-rail, .chapter-nav, .mobile-page-links, .replay-gif { display: none !important; }
  .manual-shell { margin: 0; padding: 0; }
  .manual-content { display: block; max-width: none; }
  .reading-column { padding: 0; border: 0; }
  .guide-chapter[hidden] { display: none !important; }
  .chapter-head h1 { font-size: 36px; }
  .media-figure { box-shadow: none; break-inside: avoid; }
  a { color: #000; }
}